Tubular exercise device



FIG. 1 is a top, front, and right side perspective view of a tubular exercise device showing my new design;

FIG. 2 is a top, rear, and left side perspective view of the tubular exercise device;

FIG. 3 is a front elevational view of the tubular exercise device;

FIG. 4 is a rear elevational view of the tubular exercise device;

FIG. 5 is a left side elevational view and a mirror image of the right side elevational view of the tubular exercise device; and,

FIG. 6 is a top plan view of the tubular exercise device.

The broken lines in the drawings depict portions of the tubular exercise device that form no part of the claimed design. 

CLAIM I claim the ornamental design for a tubular exercise device, as shown and described. 